Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Adcolantic Model Marine Engine, UK
Adcolantic Model Marine Engine, UK
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Victoria Tether Boat Engine, UK, Early 1900
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Adcolantic Model Marine Engine, UK
Adcolantic Model Marine Engine, UK
Hand made British Seagull
Stuart Turner "Lightweight" Boat Engine, UK, 1930s
Adcolantic Model Marine Engine, UK
Stuart Turner "Lightweight" Boat Engine, UK, 1930s
Hand made British Seagull
Stuart Turner "Lightweight" Boat Engine, UK, 1930s
Technopower 3 cyl Prototype Radial Engine by Wally Warner, MI, 1981
MAGPIE By Gerald Smith, UK circa 1948
Hand made British Seagull
Inverted Piston Engine, by Robert Hetherington, CA, circa 1930
Unknown